Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Roberto Grena"'
Publikováno v:
Energies, Vol 17, Iss 18, p 4541 (2024)
About one-third of world energy production is destined to the industrial sector, with process heat accounting for about 70% of this demand; almost half of this quota is required by endothermic processes operating at temperatures above 400 °C. Concen
Externí odkaz:
https://doaj.org/article/68367f4e72af4af29559430e5c932c8a
Autor:
Roberto Grena, Michela Lanchi, Marco Frangella, Vittorio Ferraro, Valerio Marinelli, Marco D’Auria
Publikováno v:
Energies, Vol 17, Iss 16, p 3880 (2024)
This study introduces the use of compressed air as a heat transfer fluid in small-scale, concentrated linear solar collector technology, evaluating its possible advantages over traditional fluids. This work assumes the adoption of readily available c
Externí odkaz:
https://doaj.org/article/4a42edcb045e466bbad65130a7864499
Autor:
Roberto Grena
Publikováno v:
Energies, Vol 17, Iss 14, p 3564 (2024)
Linear Fresnel concentrators (LFR) are widely seen by the scientific community as one of the most promising systems for the production of solar energy via thermal plants or concentrated photovoltaics. The produced energy depends on the optical effici
Externí odkaz:
https://doaj.org/article/0d4df2f1f1f1472ba2a61ff9c9ac94ba
Autor:
Mehdi Shokrnia, Mattia Cagnoli, Roberto Grena, Antonio D’Angelo, Michela Lanchi, Roberto Zanino
Publikováno v:
Energies, Vol 17, Iss 13, p 3221 (2024)
This work aims at enhancing the photo-thermal performance of a parabolic trough collector (PTC) system by implementing multiple coatings arrayed along the receiver tube. For this purpose, a lumped-parameter model was developed in the radial direction
Externí odkaz:
https://doaj.org/article/a10294ffb59b447d9deda347bc014ab6
Autor:
Marco D’Auria, Roberto Grena, Giampaolo Caputo, Irena Balog, Gabriella Ferruzzi, Fulvio Bassetti, Carla Bevilacqua, Mario Cilento, Raffaello Magaldi, Michela Lanchi
Publikováno v:
Energies, Vol 16, Iss 22, p 7564 (2023)
The integration of a CSP tower system with a PV solar field, sharing a thermal energy storage, is modeled and discussed. The tower system uses a new-design solid particle fluidized bed receiver integrated with a thermal storage, where hot particles a
Externí odkaz:
https://doaj.org/article/07cc7ea04f0a448ea5def8cb67cf0054
Autor:
Paola Boito, Roberto Grena
Publikováno v:
Renewable Energy Focus. 45:141-149
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d0b9c70905c93f901dde5e5909e554e
https://doi.org/10.1016/j.ref.2023.03.003
https://doi.org/10.1016/j.ref.2023.03.003
Autor:
Alberto Giaconia, Roberto Grena
Publikováno v:
Solar Energy. 224:149-159
A model of integration between thermal CSP and PV technologies is discussed, showing the complementarity of the two technologies for electricity production. In the model, a CSP system with thermal storage is coupled with a PV system without storage:
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::496291ef6990c6d59a8fa2dff14ab68b
https://doi.org/10.1016/j.solener.2021.05.043
https://doi.org/10.1016/j.solener.2021.05.043
Autor:
Paola Boito, Roberto Grena
Publikováno v:
Journal of Complex Networks. 9
In this article, we introduce, test and discuss three quantum methods for computing hub and authority centrality scores in directed networks. The methods are based on unitary, continuous-time quantum walks; the construction of a suitable Hermitian Ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4be38a8875f4e1653a87fe40ce7e1944
https://doi.org/10.1093/comnet/cnab038
https://doi.org/10.1093/comnet/cnab038
Autor:
Paola Boito, Roberto Grena
In solar engineering, many simulations require the computation of averages over a year of quantities such as the efficiency of solar plants. In the case of stationary quantities, i.e., that do not depend on the past history but only on the present co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52340ba9a1c1c0a2c708237acd19f9ec
http://hdl.handle.net/11568/1071751
http://hdl.handle.net/11568/1071751
Autor:
Paola Boito, Roberto Grena
Among the numerous proposals for concentrator design in concentrating photovoltaics, fixed-receiver linear Fresnel reflectors (with a fixed receiver and multiple mirror strips at ground level, rotating on multiple parallel axes) seem to have been qui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80aa4d4ed73d25ebcd500578c1f21334
http://hdl.handle.net/11568/1075414
http://hdl.handle.net/11568/1075414